Anti-frictional bearing



(No Model.) I 2 SheetsSheet 1. T. R. PERRALL.

ANTI FRIGTIONAL BEARING.

(No Mo deL 2 Sheets-Shet 2.

' T. R. FERRALL.

* ANTI FR-IGTIONAL BEARING.

No. 255,426. Patented Mar. 28,1882:

W'ITI EEEEB. I 7 I If y f UNITED STATES PATENT OFFICE.

THOMAS E. FERRALL, OF BOSTON, MASSACHUSETTS.

ANTI-FRICTIONAL BEARING.

SPECIFICATION forming part of Letters Patent No. 255,426, dated March28, 1882. Application filed February 6, 1882. (No model.)

a citizen of the United States, residing at Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Anti-Frictional Bearings; and I do hereby declare thatthe same are fully described in the following specification andillustrated in the accompanying drawings.

This invention relates to improvements on anti-frictional bearings; andit is carried out as follows, reference being bad to the accompanyingdrawings, on which- Figure 1 represents an end elevation of the improvedanti-frictional bearing. Fig. 2 represents a central longitudinalsection, and Fig.

3 represents a crosssection, of the rollers and central bearing-sleeve.Fig. 4 represents amodification of theinvention. Fig. 5 represents aperspective view of'one of the regulators, and Fig. 6 represents amodification of the same.

Similar letters refer to similar parts, wherever they occur, on thedifferent parts of the drawings.

a represents the central bearing-sleeve, having circular perforation afor the reception oil the pin or axle for which the anti-frictionalbearingis intended.

a is an annular groove on the inside of the sleeve a, which groove isadapted to contain a proper amount of lubricating material, so as tokeep the journal properly lubricated for a considerable length of time.As a substitute for the internal annular groove, to, a number ofrecesses may be made on the interior surface of the sleeve-bearing a;

I) b b are the anti-frictional rollers, arranged on the outer peripheryof the sleeve-bearing a, as shown in Figs. 1, 2, and 3.

c is the annular ring or shell, surrounding and inclosing the rollers 12b b.

a a are annular and outwardly-projecting flanges in the two ends of thesleeve-bearing a, between which flanges the rollers b b b are kept frommoving longitudinally.

d d are the annular regulators, one in each end of the rollers b b b.Each of the regulators'd is provided with radial projections d d betweeneach successive pair of rollers, as shown. The radial projections d dproject beyond the annular regulators, as shown in the lower part ofFigf'2, and beneath the inner edges of the annular end plates, 0 e, bywhich arrangement the outer parts of the radial projections d d serve asstops against the insides of said plates 6 e to prevent said regulatorsfrom moving outward in the axial directions of the rollers b b b. Theplates e e are provided with screw-holes e a, through which suitablescrews or bolts are inserted for securing said plates to the woodenblock or other sta-. tionary object to which they are to be secured. Itwill thus be seen that the inner edges of the annular plates 6 e serveas stops both for the rollers b b and for the regulators cl d, and thelatter serve as stops and dividers for the rollers b b b, and the latterserve to prevent a longitudinal motion of the central bearingsleeve, a,and in this manner I obtain a very simple and durable anti-frictionalbearing of great strength.

In the modification shown in Fig. 4 only one annular plate 0 is used incombination with the shell f, secured to said plate a, and provided withan inwardly-projecting annular lip, f, to confine the rollers b b b fromlongitudinal motion in the direction of their axis.

Another modification of theinventioii may becarriedoutinthefollowingmani1er,viz:bymaking the radial projections d dof the regulatorrings (1 d to project inward, as shown in Fig. 6, andbeneath the flanges a a of the sleevebearing a, in which case one of thesaid flanges a is made detachable from the sleeve'bearing a. and securedto it by means of screws or rivets a a, as shown in Fig. 4:.

What I wish to secure by Letters Patent, and claim, is-

In an anti-frictional bearing, the combination of centralsleeve-bearing, at, its lubricatorchannel a, flanges a a, rollers I) bl), the regulators d d, with their radial projections d d, and thering-easing c, or its equivalent, and the annular plates 0 e, or theirdescribed equivalents, as set forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

THOMAS R. FERRALL.

Witnesses:

ALBAN ANDREN, EDWARD 0. Loan.

